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Listed on a ransomware leak site

Mountjoy

mountjoy.co.uk

Mountjoy was listed on the BianLian leak site on Jun 4, 2024. Information as of Oct 20, 2026.

Updated continuously · figures as of Oct 20, 2026
Claimed by
BianLian
First listed
Jun 4, 2024
Claims recorded
1

Leak-Site Claim.

BianLianConfirmed claim
Posted on the leak site
Jun 4, 2024
Collected by Brandefense
Jul 11, 2025
Data claimed
Not stated

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Other confirmed victims claimed by the same group
VictimClaimed byCountryIndustryData claimedPosted
*u****BianLianUnknownUnknownNot stated
****** ******* SchoolBianLianUnknownUnknownNot stated
AV SolutionsBianLianUnknownUnknownNot stated
*** TechnologiesBianLianUnknownUnknownNot stated
**i* **s****BianLianUnknownUnknownNot stated
**a***** H****** ******r****BianLianUnknownUnknownNot stated
Other confirmed victims in the same industry
VictimClaimed byCountryIndustryData claimedPosted
BW Office World
bw-officeworld.de
PayloadDEGermanyManufacturing14 GB
Brüninghoff Group
brueninghoff.de
PayloadDEGermanyConstruction40 GB
GTL Concreto e Logística LTDA
gtlconcreto.com.br
EmperadorBRBrazilManufacturing2 GB
American Campus
americancampus.com
HelixUSUnited StatesConstructionNot stated
POWERsonic Industries Inc.AuroraCACanadaManufacturingNot stated
SMIC US Company (Sunnyvale, CA, US arm of Semiconductor Manufacturing International Corpo...
smics.com
N0nCNChinaManufacturingNot stated

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Figures as of Oct 20, 2026. Confirmed leak-site claims collected by Brandefense technologies and validated by Brandefense analysts.

Listed on a leak site means a ransomware group has claimed the company; it is not a confirmed breach. To request a correction or removal, contact Brandefense.